Stockholders' Equity - Schedule of Total Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Options Outstanding
Total share-based compensation expense	$ 511	$ 495
Cost of revenue
Options Outstanding
Total share-based compensation expense	111	101
Selling and marketing
Options Outstanding
Total share-based compensation expense	137	123
Research and development
Options Outstanding
Total share-based compensation expense	161	161
General and administrative
Options Outstanding
Total share-based compensation expense	$ 102	$ 110